LeechCraft  0.6.70-3565-g2d86529
Modular cross-platform feature rich live environment.
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util.h
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29 
30 #pragma once
31 
32 #include <functional>
33 
34 namespace LeechCraft
35 {
36 namespace Util
37 {
38  namespace detail
39  {
40  using DefaultScopeGuardDeleter = std::function<void ()>;
41 
42  template<typename F>
43  class ScopeGuard
44  {
45  F F_;
46  bool Perform_ = true;
47  public:
48  ScopeGuard () noexcept
49  : F_ {}
50  , Perform_ { false }
51  {
52  }
53 
54  ScopeGuard (const F& f) noexcept
55  : F_ { f }
56  {
57  }
58 
59  ScopeGuard (const ScopeGuard&) = delete;
60  ScopeGuard& operator= (const ScopeGuard&) = delete;
61 
63  {
64  F_ = other.F_;
65  Perform_ = other.Perform_;
66  other.Perform_ = false;
67  return *this;
68  }
69 
70  ScopeGuard (ScopeGuard&& other) noexcept
71  : F_ { other.F_ }
72  , Perform_ { other.Perform_ }
73  {
74  other.Perform_ = false;
75  }
76 
78  {
79  if (Perform_)
80  F_ ();
81  }
82 
83  void Dismiss () noexcept
84  {
85  Perform_ = false;
86  }
87 
89  {
90  Dismiss ();
92  }
93 
95  {
96  return EraseType ();
97  }
98  };
99  }
100 
102 
123  template<typename F>
125  {
126  return { f };
127  }
128 }
129 }
ScopeGuard & operator=(const ScopeGuard &)=delete
ScopeGuard< DefaultScopeGuardDeleter > EraseType()
Definition: util.h:88
detail::ScopeGuard< F > MakeScopeGuard(const F &f)
Returns an object performing passed function on scope exit.
Definition: util.h:124
ScopeGuard(const F &f) noexcept
Definition: util.h:54
std::function< void()> DefaultScopeGuardDeleter
Definition: util.h:40
ScopeGuard(ScopeGuard &&other) noexcept
Definition: util.h:70